I guess it all depends on how much LTC will be worth!
July 2017: 35$
January 2018: ~200$
Good point, it increased 8 times, but if you would have purchased LTC worth $2300 when it was $35 you could have got 65 LTC, means more porfitable then mining.
Now lets say :
March 2018: $200
December 2018: $1600
0.25 per month LTC generated x 9 = 2.5 LTC = $3600
But if you invest same $1600 you get 8 LTC
Whats your view now?